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AVFLST Vent Free Fireplace

Monessen  •  AVFLST42 Installation Instructions  • 4118-900 Rev. B  •  05/2020

OPERATION AND OPTIONAL ACCESSORIES

Faces and Trim Kits

Wide Contemporary Textured Black Face  AVFL42WFBT-A
Wide Contemporary Stainless Steel Face  AVFL42WCSS-A
Black Textured Inside Fit Trim Kit 

AVFL42TKI

Stone Kit

 

SKAVFL42

Glass Kits

  Glass Kit Bronze 

GKB

  Glass Kit Diamond 

GKD

  Glass Kit Onyx 

GKO

  Glass Kit Sapphire 

GKS

Outdoor Kit 

AVFLSTSSODK

OPERATING INFORMATION

Avoid any drafts that alter burner flame patterns. 

Do 

not allow fans to blow directly into the fireplace. Do not 
place a blower inside the burn area of the firebox. Ceiling 
fans may create drafts that alter flame patterns. Sooting 
and improper burning will result.
During  manufacturing,  fabricating  and  shipping,  various 
components of this appliance are treated with certain oils, 
films, or bonding agents. These chemicals are not harm-
ful, but may produce annoying smoke and smells as they 
are burned off during the initial operation of the appliance 
possibly causing headaches or eye or lung irritation. 

This 

is a normal and temporary occurrence.

The initial break-in operation should last two to three hours 
with the burner at the highest setting. Provide maximum 
ventilation by opening windows or doors to allow odors to 
dissipate. Any  odors  remaining  after  this  initial  break-in 
period will be slight and will disappear with continued use.
This appliance must not be used with glass doors.

OPTIONAL ACCESSORIES

There are a wide range of optional accessories available 
for the AVFL Vent Free Fireplace. A variety of face and 
trim kits can change the appearance of the fireplace. The 
outdoor kit brings the outdoors inside.

Choose the stylish rustic stone kit or go minimalist with just 
a coating of glass media and transform the fireplace to suit 
your space.

Figure 30.

  LED Strip Location

LED strips

Summary of Contents for AVFLST Series

Page 1: ...switch do not use any phone in your building Leave the building immediately Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions If you cannot reach your g...

Page 2: ...cation 9 Clearances and height requirements 10 FIREPLACE INSTALLATION 12 Secure fireplace to framing 12 Finishing material 12 Noncombustible facing installation 12 Connect the gas 13 Check gas pressur...

Page 3: ...pliance until the installation is complete This standard work checklist is to be used by the installer in conjunction with not instead of the instructions contained in this installation manual WARNING...

Page 4: ...sh air immediately Have the heater serviced as it may not be operating properly 10 The installation must conform with local codes or in the absence of local codes with the National Fuel Gas Code ANSI...

Page 5: ...ure testing of the gas supply piping system at test pressures equal to or less than 1 2 psig 3 5 kPa 24 Do not use this room heater if any part has been under water Immediately call a qualified servic...

Page 6: ...RIFICE SIZE AVFLST42 CONTROLS MODEL FUEL MAX INPUT BTU h MIN INPUT BTU h ORIFICE SIZE AVFLST42NIP NAT 37 000 24 500 2 20 mm AVFLST42PIP LP 36 000 28 500 55 GAS PRESSURES NATURAL PROPANE LP Inlet Minim...

Page 7: ...305mm Interior wall installation Exterior wall installation Minimum Rough Framing Width 44 1118mm 44 1118mm Wall cover thickness Wall cover thickness Minimum rough opening depth for 5 8 wall thicknes...

Page 8: ...rd packing material has been removed from under the unit 2 Install following the instructions found in this manual 3 Field wire main power supply to junction box Refer to the Electrical Installation s...

Page 9: ...wall ceiling woodwork and window or other combustibles Refer to Clearance and Height Requirements section on Page 10 Minimum clear ances to combustibles must be maintained Location must not be affecte...

Page 10: ...ilure to follow instructions exactly can create a fire hazard Floor Clearance The fireplace may be installed directly on a combustible floor or a raised platform of an appropriate height Do not place...

Page 11: ...installa on TVs should not be used in situa ons where the actual TV temperature exceeds the manufacturers maximum allowable opera ng temperatures iden ed in the TV s technical speci ca ons Contact the...

Page 12: ...orm constructed of combustible materials which do not protrude beyond the face NONCOMBUSTIBLEFACINGINSTALLATION CAUTION The noncombustible wall board supplied with this unit can be damaged if dropped...

Page 13: ...vent the appliance from operating reliably Figure 10 IMPORTANT Loosen the pipe adapter on the flex tube before installing to the system piping Always use an external regulator for all propane LPG heat...

Page 14: ...urn captured screw counterclockwise two or three turns and then place tubing to pressure gauge over test point Use test point A closest to gas inlet If the pressure is not within the range listed for...

Page 15: ...ighten the screws 4 Make all necessary wire connections and reattach the cover plate to the outer shell WARNING Electrical connections should only be performed by a qualified licensed electrician Main...

Page 16: ...out Refer to Figure 13 and 14 IFP ODS Wiring Diagram This appliance is equipped with an Intellifire Plus control valve which operates on a 6 volt 1 5AMP system Plug the 6 volt transformer plug into t...

Page 17: ...LED STRIP LED STRIP TRANSFORMER CONTROL MODULE TOP BUTTON ON HI MED LO OFF BOTTOM BUTTON Color Selection RED BLUE YELLOW GREEN RED BLACK BLACK BLACK BLACK GREEN Use Y cord supplied in install bag to p...

Page 18: ...proper amount of air the burner needs to burn cleanly This may cause sooting 1 Spread fireglass evenly in one layer over the entire floor and burner It is important to not have the fireglass too thick...

Page 19: ...ted on the top of this label If you do not smell gas go to next step 3 To light the burner Equipped with wall switch Turn ON OFF switch to ON Equipped with remote or wall control Press ON or FLAME but...

Page 20: ...ee Figure 18 for location Lift the barrier screen off of the appliance 2 Locate the battery tray and insert four AA cell batteries See Figure 18 Battery polarity must be correct or module damage will...

Page 21: ...t in a separate room The remote control must be placed within 30 feet 9 14 m of the fireplace but should not be exposed to extreme heat The RC300 is approved for interior installation and should not b...

Page 22: ...ne remote control two 6 screws two wall anchors 3 AAA batteries and one AUX300 module If batteries are properly installed the remote will turn on 1 Remove remote control components from packaging 2 Re...

Page 23: ...nk green for 10 seconds While the LED is blinking press the POWER button on the remote control A double beep will come out of the control module to indicate that it has been programmed successfully NO...

Page 24: ...ill not be displayed when the remote status is OFF Use the SELECT button to select the current feature Use the UP and DOWN arrows to toggle through the menu functions and value selec tions in the subm...

Page 25: ...then press SELECT The AUX1 function can be adjusted to 4 different settings HI MED LOW and OFF Adjusting Thermostat Press the MENU button to activate the menu Using the UP and DOWN arrows highlight t...

Page 26: ...Use care and wear gloves when opening the front and accessing compo nents inside the fireplace Check remote screen for battery level indicator replace the batteries if low battery is indicated See Fi...

Page 27: ...as safety feature that automatically shuts down the fireplace after 9 hours of continuous operation without receiving a command from the RC300 remote 4 If you intend to use both an optional wired wall...

Page 28: ...full rate after 15 minutes the flames should appear as shown in Figure 22 FLAME APPEARANCE LED CONTROL LED CONTROL Multi colored LED lights Two buttons turn LEDs On Hi Med Lo and Off and cycles throu...

Page 29: ...w Inspect and clean burner air intake holes Remove lint or particles with vacuum brush or pipe cleaners Failure to keep air intake holes clean will result in sooting and poor combustion Inspect and cl...

Page 30: ...base 4 Remove two screws holding LED control assembly in place See Figure 26 Turn flat and pull forward 5 Remove the two black LED connectors 6 From inside unit start at one end of the strip and begin...

Page 31: ...certain oils films or bonding agents These chemicals are not harm ful but may produce annoying smoke and smells as they are burned off during the initial operation of the appliance possibly causing he...

Page 32: ...small Inlet gas pressure is too low Inlet gas pressure is too low Burner backfires during combustion Manifold gas pressure is too low Contact local gas company Burner orifice is clogged Clean burner...

Page 33: ...rify that AC power has been connected to the appliance Ensure that both the 6V IPI control module power supply as well as the LED power supply are securely plugged into the appliance junction box Faul...

Page 34: ...voltage of transformer at connection to module Acceptable read ings of a good transformer are between 6 4 and 6 6 volts DC Bat tery power supply voltage must be at least 4 volts If less than 4 volts r...

Page 35: ...se Verify connection from flame sensing rod to white sensor wire Polish flame sens ing rod with fine steel wool to remove any contaminants that may have accumulated on flame sensing rod Verify continu...

Page 36: ...Bulb Socket SRV73D4521 3 Porcelain Panel Qty 2 req 20308284 4 Engine Assembly NG SRV4118 015 Propane SRV4118 016 5 Deflection Glass Qty 2 req SRV20305432 Y 6 Support Glass Painted Qty 4 req 20306020K...

Page 37: ...454K Tube Tee to Injector 78D0090K Y Pilot Tube SRV20304115 Y Pilot Regulator NG Only SRV14D0469 Y Injector Qty 2 req NG 20305649 Propane SRV62D3005 Y 4 2 Burner Assembly NG SRV4118 013 Y Propane SRV4...

Page 38: ...ibutor whichever occurs earlier However the warranty shall commence no later than 24 months following the date of product shipment from HHT regardless of the installation or occupancy date The warrant...

Page 39: ...des 3 shipping or improper handling 4 improper operation abuse misuse continued operation with damaged corroded or failed components accident or improperly incorrectly performed repairs 5 environmenta...

Page 40: ...Monessen a brand of Hearth Home Technologies 7571 215th Street West Lakeville MN 50044 www monessenhearth com...

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